I think that little panel reflects the "Current Drive" data on the Energy app.... Which doesn't have a reset other than not having driven for a while...
The only thought I have is where you mentioned going off-road a bit.... the vans are single motor (to my knowledge), and the tires are not all-terrains. If your meaning of 'off road' is just 'dirt road', you should be okay, but it's something to keep in mind.
Guess that's another thing to add to list of "differences between service centers"? Or maybe something that changed inbetween your service appointments...
A warm(er) garage does help! I remember seeing better numbers in my Model 3 (way back when) after my wife and I insulated our garage - even with the garage being just a few degrees warmer than it had been before.
I don't know exactly what battery and motor temps are the 'happiest' for those...
This whole philosophy is why I love towing my trailer with my R1T (and before it Model Y) - I'm taking time to enjoy things, which is increasingly lost in this modern world in my opinion.
If you're doing just quick little trips in the city without some sustained driving (5+ miles), then the motors and battery will have not warmed up a lot (outside of summer of course). So for example, my three mile commute to work isn't as efficient because of this. Granted for me it's...
I can't find a reference in the R2 Owner's Guide to non-trailer hitch weight limits, but I know that with my previous Model Y it was limited to about 175lbs for vertical loads like bike racks, etc. And that was with their tow rating of 350lbs trailer tongue weight....
Guessing that would require time in a SC, right? Can't be done Mobile?
I'm not 100% sure of the sound you are describing, maybe I need to drive home today without music playing to see if I can hear what you are talking about. (Plus, there's lots of thunks and clunks and maybe some squeaks when...